Bump cygwin/cygwin-install-action from 4 to 5 #453

Job	Run time
macOS	1m 5s
Installation tests	14s
Run static checkers	30s
Build for 32-bit	27s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer=""]	2m 49s
Build with make	2m 39s
Windows	5m 29s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="thread"]	2m 51s
Windows (MinGW64)	1m 0s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="undefined"]	2m 50s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="leak"]	2m 39s
Build with CMake [Release, gcc-14, cmake-3.29, sanitizer="address"]	3m 0s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer=""]	2m 47s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="thread"]	3m 0s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="undefined"]	2m 53s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="leak"]	3m 0s
Build with CMake [Release, clang-18, cmake-3.29, sanitizer="address"]	3m 2s
Build with CMake [Debug, clang-18, cmake-3.29, sanitizer=""]	2m 49s
Build with CMake [Release, gcc-7, cmake-3.13, sanitizer=""]	4m 24s
Build with CMake [Release, clang-12, cmake-3.13, sanitizer=""]	5m 26s
	52m 54s

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